___ us has a bike.
Go on ______ the other exercise after you have finished this one.
We grow all our own fruit and vegetables, ____ saves money, of course. A asB. which C. thatD. what
If you have some difficulties ____ your grammar, you had better ask your teacher ____.
--- How are you getting along with your studies? --- Not very well, ____.
______ more attention, the tree could have grown better.